22225529 has 4 divisors (see below), whose sum is σ = 22358784. Its totient is φ = 22092276.

The previous prime is 22225519. The next prime is 22225537. The reversal of 22225529 is 92552222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22225529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22225519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66377 + ... + 66710.

It is an arithmetic number, because the mean of its divisors is an integer number (5589696).

Almost surely, 2^22225529 is an apocalyptic number.

It is an amenable number.

22225529 is a deficient number, since it is larger than the sum of its proper divisors (133255).

22225529 is a wasteful number, since it uses less digits than its factorization.

22225529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133254.

The product of its digits is 7200, while the sum is 29.

The square root of 22225529 is about 4714.3959316120. The cubic root of 22225529 is about 281.1581662976.

The spelling of 22225529 in words is "twenty-two million, two hundred twenty-five thousand, five hundred twenty-nine".